Figure 2.

Redundancy analysis of the microbiota composition of the lower back of 12 adults for
determining the most important variables (17 in total) explaining the variation in
microbiota composition at the genus level. Genera that represented at least 85.1% of the first two principal components used
as explanatory axis in the plots are shown as vectors. The first component and second
component explain 32.6% and 24.4% of the variance, respectively. This figure was generated
with Canoco version 4.5. The different variables are represented by arrows, where
length reflects significance. Colors indicate sample groupings: red arrows represent
all individuals, green arrows represent the males and females, and the blue arrows
correspond to the stripping depth (STR0 is non-damaged healthy superficial skin, and
STR5 and STR10 represent 5 and 10 times tape-stripped skin, respectively). The microbial
genera are shown in black text color.